Hitachi, Ltd.

Hitachi Displays, Ltd.

Panasonic Liquid Crystal Display Co., Ltd.

Japan Display Inc.

Hitachi Chemical Company, Ltd.

Sukekazu Aratani

Katsumi Kondo

Keiichiro Ashizawa

Masuyuki Ohta

Kazuhiro Ogawa

Nobutake Konishi

Masahiro Yanai

Kazuhiko Yanagawa

Masahito Ohe

Hagen Klausmann

Shingo Ishihara

Makoto Yoneya

Hirotaka Sakuma

Masaya Adachi

Nobuyuki Suzuki

Yoshiyuki Kaneko

Masahiro Ishii

Shigeru Matsuyama

Masao Shimizu

Kazuhito Masuda

Hiroshi Sasaki

Masahiro Tanaka

Hajime Murakami

Yasushi Tomioka

Hisao Yokokura

Hiroaki Asuma

Hiroyuki Kagawa

Masahito Oh-e

Yoshiyuki Umeda

Takayuki Ouchi

Kiyoshige Kinugawa

Setsuo Kobayashi

Shintaro Takeda

Kotaro Araya

Toshiro Mikami

Tsunenori Yamamoto

Yoshiharu Nagae

Masatoshi Wakagi

Katsusuke Shimazaki

Yoshifumi Tomita

Yuka Utsumi

Yuichi Sawai

Mamoru Okano

Tomoji Oishi

Seiji Yonekura

Yasunari Maekawa

Shuichi Ohara

Toshiyuki Matsuura

Yasuo Imanishi

Yoshinobu Fukano

Masato Shimura

Toshinari Shibasaki

Masahiro Kawasaki

Ikuo Hiyama

Makoto Tsumura

Tatsuya Sugita

Noriyuki Kinjo

Etsuko Nishimura

Takahiro Nakayama

Akira Kageyama

Atsushi Kakuta

Tsuneaki Kawanishi

Toyotaka Yuasa

Masato Isogai

Toshiro Saito

Katuo Sugawara

Masuyuki Ota

Kohhei Aida

Yuzo Ito

Yasuhiko Tada

Shigeo Suzuki

Hiromu Terao

Hideo Homma

Shunichiro Nobuki

Yasuo Katsuya

Akira Hosoya

Naoya Tokoo

Shigeru Matsuama

Kazuhiko Yamagawa

Kayo Ono

A purpose of the present invention is to provide a temperature history indicator that allows for visual confirmation of whether the temperature is at or below a prescribed temperature as well as simple conversion of this information into data. A temperature history indicator according to the present invention is characterized by being provided with a label layer and a temperature-indicating layer laminated above or below the label layer, wherein the temperature-indicating layer includes a substance having at crystallization starting temperature of 10&#xb0; C. or lower and a melting point at least 20&#xb0; C. higher than the crystallization starting temperature.

Temperature history indicator

In an organic light-emitting element including a first electrode, a second electrode, and a light-emitting layer placed between the first electrode and the second electrode, the light-emitting layer includes a host material, a first emitter, and a second emitter, the emission peak wavelength of the first emitter is longer than the emission peak wavelength of the second emitter, and an aromatic heterocyclic ligand or an auxiliary ligand of the first emitter include an electron withdrawing group. Accordingly, an organic light-emitting element can be provided in which the HOMO value of a specific luminescent dopant is closer to the HOMO value of another luminescent dopant.

Material for forming organic light-emitting layer, coating liquid for forming organic light-emitting element, organic light-emitting element and light source device, and method for manufacturing same

An organic light-emitting device includes a lower electrode, an upper electrode, and an organic layer disposed between these electrodes. The organic layer is a laminate of a hole injection layer, a hole transport layer, a light-emitting layer, an electron transport layer, and an electron injection layer. The light-emitting layer includes a host and a first dopant. The hole transport layer includes a hole transporting material, and the electron transport layer includes an electron transporting material. The hole transporting material and the electron transporting material have functional groups. The first dopant in the light-emitting layer has a functional group, and is concentrated on the side of the light-emitting layer in contact with the hole transport layer or the electron transport layer.

Organic light-emitting device, light source device using same, organic light-emitting layer material, coating liquid for forming organic light-emitting layer, and method for producing organic light-emitting device

It is an object of the present invention to provide an organic light-emitting device which can emit white light by easily controlling dopant concentrations. The organic light-emitting device has a first electrode () and second electrode () which hold a light-emitting layer () in-between, wherein the light-emitting layer contains a host material (), red-light-emitting dopant (), green-light-emitting dopant () and blue-light-emitting dopant (), the red-light-emitting dopant containing a first functional group for transferring the dopant toward the first electrode and the green-light-emitting dopant containing a second functional group for transferring the dopant toward the second electrode.

Organic luminescent materials, coating solution using same for organic

In order to achieve the increased efficiency of an organic light-emitting element, there is a need to reduce the influence of non-radiative recombination of electron-hole pairs except for surface plasmon polariton excitation, to convert most of exciton energy into visible light, and to tremendously improve the luminous efficiency of the organic light-emitting element. An organic light-emitting element according to the present invention includes a reflective electrode, a transparent electrode, and a light-emitting layer placed between the reflective electrode and the transparent electrode, and the organic light-emitting element is configured so that the light-emitting layer contains a host and a first dopant, and for the first dopant, one of the vertical component and horizontal component of the average value for transition dipole moments with respect to a substrate surface is larger than the other of the components.

Organic light-emitting element, light source device and method of manufacturing organic light-emitting element

An organic light-emitting device includes an upper electrode, a lower electrode, and a light-emitting layer disposed between the upper and lower electrodes, wherein the light-emitting layer includes a host and a first dopant. The first dopant includes a pyridyltriazole derivative as an auxiliary ligand, the auxiliary ligand of the first dopant contains a functional group R1 or a functional group R2, and the first dopant is displaced toward a surface of the light emitting layer by the action of at least one of the functional groups R1 and R2, wherein the surface is on a side where the upper electrode is present, and also directed to a coating liquid for use in forming the light-emitting layer with an organic material. An organic light-emitting device is produced with the coating liquid, a light source apparatus includes the organic light-emitting device, and methods for manufacture thereof are disclosed.

Organic light-emitting layer material, coating liquid for use in forming organic light-emitting layer with organic material, organic light-emitting device produced with coating liquid, light source apparatus with organic light-emitting device, and methods for manufacture thereof

The objects of the present invention are to provide an organic luminescent material capable of being easily controlled for dopant concentrations. The present invention is characterized in that a organic light-emitting device comprising a upper electrode, a lower electrode; and a light-emitting layer positioned between the upper electrode and the lower electrode, wherein the light-emitting layer contains a host, a first dopant and a second dopant, the first dopant is a blue-light-emitting dopant or a green-light-emitting dopant, the first dopant has a first functional group, and the first functional group makes the first dopant transfer toward the surface of the light-emitting layer on the upper electrode side in the light-emitting layer.

Organic luminescent materials, coating solution using organic luminescent materials for organic emitting layer, organic light emitting device using coating solution, light source device using organic light emitting device and method of organic light emitting device

An organic light-emitting device includes a lower electrode, an upper electrode, and an organic layer disposed between the lower electrode and the upper electrode, the organic layer including a charge transport layer and a mixed layer in contact with the charge transport layer, the mixed layer including a host, a first dopant, and a charge transporting material, the first dopant including a first functional group, the charge transporting material including a second functional group, the first dopant being drawn to a charge transport layer contact surface where the mixed layer is in contact with the charge transport layer, and the charge transporting material being drawn to the mixed layer surface other than the charge transport layer contact surface. With the present invention, the concentrations of the molecules contained in the mixed layer of the light-emitting layer and the charge transport layer can be easily controlled.

Organic light-emitting device, coating liquid for forming organic light-emitting device, material for forming organic light-emitting device, light source device using organic light-emitting device, and organic light-emitting device producing method

A liquid crystal display device includes first and second substrates with a liquid crystal layer disposed therebetween, a display region and a peripheral region, a gate signal line and an image signal line, an insulating layer formed over the gate signal line and the image signal line, a pixel electrode formed in the display region, a counter electrode formed over the insulating layer and formed by a first transparent conductive layer, and a second transparent conductive layer and an external connection terminal. The second transparent conductive layer and the external connection terminal are disposed in the peripheral region, and the second transparent conductive layer is formed over the insulating layer and is electrically connected to the counter electrode and the external connection terminal. A part of the gate signal line is covered by the second transparent conductive layer in the peripheral region.

Liquid crystal display device

Organic luminescent materials, coating solution using same for organic emitting layer, organic light emitting device using coating solution and light source device using organic light emitting device

A liquid crystal display device includes a first substrate, a pixel electrode and a counter electrode, an insulation film, and a first orientation film formed over the pixel electrode and the counter electrode on the first substrate, the first orientation film being responsive to a radiated polarized light to obtain an initial orientation direction. A second substrate is opposed to the first substrate, a second orientation film is formed over the second substrate, and a liquid crystal is sealed between the first and second substrates. The first and second orientation films are made of polyimide, the liquid crystal has negative dielectric anisotropy, and the liquid crystal display device is normally in a black mode. An angle formed between the electric field and the initial orientation direction of the first orientation film is in a range of greater than 0&#xb0; to 45&#xb0;.

In-plane field type liquid crystal display device comprising liquid crystal molecules with more than two kinds of reorientation directions

A liquid crystal display apparatus is able to display high quality motion pictures with less after-image when displaying motion pictures and with less fuzzy images without making the response speed of the liquid crystal too fast. The display data emphasized excessively more than a changed value is written into the pixel having any change detected by comparison with the previous display data and its value is made to change excessively more than the value corresponding to its original display data, and then, according to the optical response of the liquid crystal, the lighting time and the lighting period of the light source are controlled for the individual areas of the illumination unit having plural areas.

Liquid crystal display apparatus

An organic light-emitting display device is provided that has prolonged service life, lowered wiring resistance that can lower power consumption, and that is easy to manufacture. In a first embodiment, a moisture capturing layer is provided between an upper electrode and a lower electrode. A second embodiment includes a metal substrate, an organic light-emitting element on the substrate and an upper transparent electrode connected to the substrate through a contact hole. In a third embodiment, a method is provided for forming a first organic compound including a light-emitting layer, heating the first organic compound in vacuo, and forming a second organic compound.

Organic light-emitting element, method for manufacturing the organic light-emitting element, apparatus for manufacturing the organic light-emitting element, and organic light-emitting device using the organic light-emitting element

To provide an organic electroluminescent display device including an organic electroluminescent layer that can be easily fabricated under an atmosphere containing oxygen and which can achieve high efficiency. An organic electroluminescent display device includes a substrate, an organic electroluminescent layer, an upper electrode and a lower electrode sandwiching therein the organic electroluminescent layer, either one of the upper and lower electrodes being a transparent electrode, and the other being a reflecting electrode, and a charge transport layer disposed between the organic electroluminescent layer and the substrate. The charge transport layer is photo-cured by light with a wavelength longer than that of a near-ultraviolet light.

Organic electroluminescent display device

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Hitachiota, Japan

Sukekazu Aratani